During the filming of Country Strong, Paltrow had to gain twenty pounds. This was a very challenging time for her celebrity trainer, Tracey Anderson, who also works with Jennifer Aniston, Kate Hudson, and Shakira. "They wanted her to eat a lot of fried chicken," Anderson told People. "It was frustrating for me." Paltrow, you see, has never gained weight before. "When I trained her for the first Iron Man movie, I took 30 pounds off her," Anderson said. "And she's been consistent ever since." [People]